ID   CYSG_BORA1              Reviewed;         461 AA.
AC   Q2KWB0;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 2.
DT   16-JUN-2009, entry version 26.
DE   RecName: Full=Siroheme synthase;
DE   Includes:
DE     RecName: Full=Uroporphyrinogen-III C-methyltransferase;
DE              Short=Urogen III methylase;
DE              EC=2.1.1.107;
DE     AltName: Full=SUMT;
DE     AltName: Full=Uroporphyrinogen III methylase;
DE              Short=UROM;
DE   Includes:
DE     RecName: Full=Precorrin-2 dehydrogenase;
DE              EC=1.3.1.76;
DE   Includes:
DE     RecName: Full=Sirohydrochlorin ferrochelatase;
DE              EC=4.99.1.4;
GN   Name=cysG; OrderedLocusNames=BAV0848;
OS   Bordetella avium (strain 197N).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Alcaligenaceae; Bordetella.
OX   NCBI_TaxID=360910;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=16885469; DOI=10.1128/JB.01927-05;
RA   Sebaihia M., Preston A., Maskell D.J., Kuzmiak H., Connell T.D.,
RA   King N.D., Orndorff P.E., Miyamoto D.M., Thomson N.R., Harris D.,
RA   Goble A., Lord A., Murphy L., Quail M.A., Rutter S., Squares R.,
RA   Squares S., Woodward J., Parkhill J., Temple L.M.;
RT   "Comparison of the genome sequence of the poultry pathogen Bordetella
RT   avium with those of B. bronchiseptica, B. pertussis, and B.
RT   parapertussis reveals extensive diversity in surface structures
RT   associated with host interaction.";
RL   J. Bacteriol. 188:6002-6015(2006).
CC   -!- FUNCTION: Multifunctional enzyme that catalyzes the SAM-dependent
CC       methylation of uroporphyrinogen III at position C-2 and C-7 to
CC       form precorrin-2 and then position C-12 or C-18 to form
CC       trimethylpyrrocorphin 2. It also catalyzes the conversion of
CC       precorrin-2 into siroheme. This reaction consists of the NAD-
CC       dependent oxidation of precorrin-2 into sirohydrochlorin and its
CC       subsequent ferrochelation into siroheme (By similarity).
CC   -!- CATALYTIC ACTIVITY: S-adenosyl-L-methionine + uroporphyrinogen III
CC       = S-adenosyl-L-homocysteine + precorrin-1.
CC   -!- CATALYTIC ACTIVITY: S-adenosyl-L-methionine + precorrin-1 = S-
CC       adenosyl-L-homocysteine + precorrin-2.
CC   -!- CATALYTIC ACTIVITY: Precorrin-2 + NAD(+) = sirohydrochlorin +
CC       NADH.
CC   -!- CATALYTIC ACTIVITY: Siroheme + 2 H(+) = sirohydrochlorin + Fe(2+).
CC   -!- PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis;
CC       precorrin-2 from uroporphyrinogen III: step 1/1.
CC   -!- PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis;
CC       sirohydrochlorin from precorrin-2: step 1/1.
CC   -!- PATHWAY: Porphyrin metabolism; siroheme biosynthesis; precorrin-2
CC       from uroporphyrinogen III: step 1/1.
CC   -!- PATHWAY: Porphyrin metabolism; siroheme biosynthesis; siroheme
CC       from sirohydrochlorin: step 1/1.
CC   -!- PATHWAY: Porphyrin metabolism; siroheme biosynthesis;
CC       sirohydrochlorin from precorrin-2: step 1/1.
CC   -!- SIMILARITY: Belongs to the precorrin methyltransferase family.
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DR   EMBL; AM167904; CAJ48459.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; YP_785377.1; -.
DR   GeneID; 6267920; -.
DR   GenomeReviews; AM167904_GR; BAV0848.
DR   KEGG; bav:BAV0848; -.
DR   NMPDR; fig|521.1.peg.820; -.
DR   HOGENOM; Q2KWB0; -.
DR   GO; GO:0005488; F:binding; IEA:InterPro.
DR   GO; GO:0043115; F:precorrin-2 dehydrogenase activity; IEA:HAMAP.
DR   GO; GO:0051266; F:sirohydrochlorin ferrochelatase activity; IEA:EC.
DR   GO; GO:0004851; F:uroporphyrin-III C-methyltransferase activity; IEA:HAMAP.
DR   GO; GO:0009236; P:cobalamin biosynthetic process; IEA:HAMAP.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   GO; GO:0019354; P:siroheme biosynthetic process; IEA:HAMAP.
DR   HAMAP; MF_01646; -; 1.
DR   InterPro; IPR000878; 4pyrrol_Mease.
DR   InterPro; IPR014777; 4pyrrole_Mease_sub1.
DR   InterPro; IPR014776; 4pyrrole_Mease_sub2.
DR   InterPro; IPR006366; CobA_cysG_C.
DR   InterPro; IPR016040; NAD(P)-bd_dom.
DR   InterPro; IPR019478; Sirohaem_synthase_dimer_dom.
DR   InterPro; IPR006367; Sirohaem_synthase_N.
DR   InterPro; IPR003043; Uropor_MeTrfase_CS.
DR   Gene3D; G3DSA:3.40.1010.10; 4pyrrole_Mease_sub1; 1.
DR   Gene3D; G3DSA:3.30.950.10; 4pyrrole_Mease_sub2; 1.
DR   Gene3D; G3DSA:3.40.50.720; NAD(P)-bd; 1.
DR   Pfam; PF10414; CysG_dimeriser; 1.
DR   Pfam; PF00590; TP_methylase; 1.
DR   TIGRFAMs; TIGR01469; cobA_cysG_Cterm; 1.
DR   TIGRFAMs; TIGR01470; cysG_Nterm; 1.
DR   PROSITE; PS00839; SUMT_1; 1.
DR   PROSITE; PS00840; SUMT_2; 1.
PE   3: Inferred from homology;
KW   Cobalamin biosynthesis; Complete proteome; Lyase; Methyltransferase;
KW   Multifunctional enzyme; NAD; Oxidoreductase; Porphyrin biosynthesis;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN         1    461       Siroheme synthase.
FT                                /FTId=PRO_0000330496.
FT   REGION      218    461       Uroporphyrinogen-III C-methyltransferase.
SQ   SEQUENCE   461 AA;  49690 MW;  75798D4607AAB25E CRC64;
     MKLFPIFSDI KGRCVLVVGG GAVATRKAQA LLEAGAAVSV GAPTLTPELA RLAQGQTITH
     LQGEFDADWL KDAWLIIAAT DDRTVNTRVY EAACARRQFC NVVDDPALSS FQVPSIVDRS
     PLIVAISSSG LAPVLARRLR ERLESLFDHS LGALAELAAR YRPAIRAARA DLKERRRFYD
     WLLDGPVAAA LRRAQPQQAQ EALDEALARP ALSQDGRVVL VGAGPGDPGL LTLKGLRALN
     EADVILHDRL VSAEVLALAR RDAERITVGK RLGENHNATQ ARIHELMVEH ARAGRRVVRL
     KGGDAFIFGR GGEELEHLRA HGVDYEVVPG ITAALACAAY AGIPLTHRDY AQSVHLVTAH
     CRADEEALDW DGLARGQQTL AFYMGVGQLD ILSARLVAHG RPGSTPFALI ENGSRPSQRV
     VMGRLSQLAE RAREQAVASP ALLIVGEVAA LADRLAWFGK P
//